.mxf OP1a exports with embedded 608 or 708 captions is NOT working. Master control sees the captions flag, but no captions. This WILL BLOW UP YOUR TV SHOW if you're not careful. As a workaround, I exported a ProRes 422 HQ file and captioned it as per usual in 14.9. Thank God. Of course now I have to suffer with the grief of having two versions on my machine... but it's better than running color bars in my time slot. Lord.
Thanks for the heads up! Please keep us posted if you're able to narrow down the issue. It's terrifying to run into these kinds of issues at the last minute.
I just sent a TV episode to a network early to have them check it out. They've alerted me to captions compatibility issues in the past, but they said this program worked fine on their system. Here was my setup:
MXF OP1a (XDCAM 50 NTSC 4:2:2)
Embedded captions on 608 CC1
Premiere v15.0 / Mac Mojave 10.14.6
Clint - that's our exact recipe. I think we're solved for now.
This is bizarre to hear, what playout system are you using? We haven't had any issues at our station and our ITX playout server is seeing the captions from our premiere mxf op1a files just fine.
By any chance are you using any of the effect options under the Effects tab in the Export Settings? We do have an open issue with effects applied via Effects tab in Export Settings (eg: Time Tuner, Video Limiter, etc.), that we are working on. A possible workaround is to apply the effect(s) in your Timeline, rather than Export Settings (eg: apply effect(s) to Adjustment Layer in Timeline)
One other open issue we are working on involves Sequences with non-standard frame rates (eg: Variable Frame Rate, 23.98 fps instead of 23.976, etc.). Possible workaround is to create Sequence with one of the available Timebase fps options or use one of the supplied Sequence presets.
No effects upon export, although I do put an SMPTE limiter adjustment layer across the entire timeline upon export. I'm also acquiring in 29.97 and 30p, but exporting 29.97. I have had better luck lately exporting out of Premier 15 with results as expected. With that said, there are still what I would call some strange behaviors happening with captions that are too inchoate to describe here - but I have had OK results lately.